Dr. James Van Allen and his group of United States scientists discovered a set of . magnetic equators
planets
magnetic lines
radiation belts

Invasive species are one of the major threats to biodiversity. these species multiply quickly and compete with native species for food, sunlight, spac and other resources. on the map, determine the area where native species will have limited resources available to them due to invasion threat from invasive species threat very low low medium high very high

15 ! come and answer! a(n) is the general term for an infectious disease that has spread across a city, region, or country.

Hybrid instruments that play sounds that are part sampled and part synthesized are known as: